| /******************************************************************************* |
| * Copyright (c) 2007, 2010 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0, which accompanies this distribution |
| * and is available at http://www.eclipse.org/legal/epl-v10.html. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.core.internal.jpa1.context.orm; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import org.eclipse.jpt.core.MappingKeys; |
| import org.eclipse.jpt.core.context.AttributeMapping; |
| import org.eclipse.jpt.core.context.AttributeOverride; |
| import org.eclipse.jpt.core.context.BaseColumn; |
| import org.eclipse.jpt.core.context.Column; |
| import org.eclipse.jpt.core.context.NamedColumn; |
| import org.eclipse.jpt.core.context.TypeMapping; |
| import org.eclipse.jpt.core.context.orm.OrmAttributeOverride; |
| import org.eclipse.jpt.core.context.orm.OrmAttributeOverrideContainer; |
| import org.eclipse.jpt.core.context.orm.OrmColumn; |
| import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages; |
| import org.eclipse.jpt.core.internal.validation.JpaValidationMessages; |
| import org.eclipse.jpt.core.jpa2.context.AttributeOverride2_0; |
| import org.eclipse.jpt.core.jpa2.context.SingleRelationshipMapping2_0; |
| import org.eclipse.jpt.core.resource.orm.OrmFactory; |
| import org.eclipse.jpt.core.resource.orm.XmlAttributeOverride; |
| import org.eclipse.jpt.core.resource.orm.XmlColumn; |
| import org.eclipse.jpt.core.utility.TextRange; |
| import org.eclipse.jpt.db.Table; |
| import org.eclipse.jpt.utility.internal.iterables.CompositeIterable; |
| import org.eclipse.jpt.utility.internal.iterables.FilteringIterable; |
| import org.eclipse.jpt.utility.internal.iterables.SubIterableWrapper; |
| import org.eclipse.wst.validation.internal.provisional.core.IMessage; |
| import org.eclipse.wst.validation.internal.provisional.core.IReporter; |
| |
| public class GenericOrmAttributeOverride |
| extends AbstractOrmOverride |
| implements AttributeOverride2_0, OrmAttributeOverride, OrmColumn.Owner |
| { |
| protected final OrmColumn column; |
| |
| /* 2.0 feature - a relationship may map this attribute override */ |
| protected boolean mappedByRelationship; |
| |
| |
| public GenericOrmAttributeOverride( |
| OrmAttributeOverrideContainer parent, |
| AttributeOverride.Owner owner, |
| XmlAttributeOverride resourceAttributeOverride) { |
| |
| super(parent, owner, resourceAttributeOverride); |
| this.column = getXmlContextNodeFactory().buildOrmColumn(this, this); |
| this.column.initialize(resourceAttributeOverride.getColumn()); |
| |
| this.mappedByRelationship = //calculateMappedByRelationship(); |
| // TODO - move this real calculation to a (currently nonexistent) initialize method |
| false; |
| } |
| |
| |
| public OrmAttributeOverride setVirtual(boolean virtual) { |
| return (OrmAttributeOverride) getOwner().setVirtual(virtual, this); |
| } |
| |
| @Override |
| public Owner getOwner() { |
| return (Owner) super.getOwner(); |
| } |
| |
| @Override |
| protected XmlAttributeOverride getResourceOverride() { |
| return (XmlAttributeOverride) super.getResourceOverride(); |
| } |
| |
| |
| // ********************* column **************** |
| |
| public OrmColumn getColumn() { |
| return this.column; |
| } |
| |
| //************* NamedColumn.Owner implementation ************** |
| |
| public TypeMapping getTypeMapping() { |
| return getOwner().getTypeMapping(); |
| } |
| |
| public Table getDbTable(String tableName) { |
| return this.getOwner().getDbTable(tableName); |
| } |
| |
| public String getDefaultColumnName() { |
| Column column = resolveOverriddenColumn(); |
| if (column == null) { |
| return getName(); |
| } |
| return column.getName(); |
| } |
| |
| |
| //************* BaseColumn.Owner implementation ************** |
| |
| public String getDefaultTableName() { |
| Column column = resolveOverriddenColumn(); |
| if (column != null) { |
| String tableName = column.getSpecifiedTable(); |
| if (tableName != null) { |
| return tableName; |
| } |
| } |
| return getOwner().getDefaultTableName(); |
| } |
| |
| protected Column resolveOverriddenColumn() { |
| return isVirtual() ? getOwner().resolveOverriddenColumn(getName()) : null; |
| } |
| |
| public boolean tableNameIsInvalid(String tableName) { |
| return getOwner().tableNameIsInvalid(tableName); |
| } |
| |
| public Iterator<String> candidateTableNames() { |
| return getOwner().candidateTableNames(); |
| } |
| |
| public boolean isVirtual() { |
| return getOwner().isVirtual(this); |
| } |
| |
| |
| //***************** OrmColumn.Owner implementation **************** |
| |
| public XmlColumn getResourceColumn() { |
| return this.getResourceOverride().getColumn(); |
| } |
| |
| protected boolean isColumnSpecified() { |
| return getResourceColumn() != null; |
| } |
| |
| public void addResourceColumn() { |
| this.getResourceOverride().setColumn(OrmFactory.eINSTANCE.createXmlColumn()); |
| } |
| |
| public void removeResourceColumn() { |
| this.getResourceOverride().setColumn(null); |
| } |
| |
| |
| // **************** AttributeOverride2_0 impl ***************************** |
| |
| public boolean isMappedByRelationship() { |
| return this.mappedByRelationship; |
| } |
| |
| protected void setMappedByRelationship(boolean newValue) { |
| boolean oldValue = this.mappedByRelationship; |
| this.mappedByRelationship = newValue; |
| firePropertyChanged(MAPPED_BY_RELATIONSHIP_PROPERTY, oldValue, newValue); |
| } |
| |
| protected boolean calculateMappedByRelationship() { |
| for (SingleRelationshipMapping2_0 each : getMapsIdRelationships()) { |
| if (getName() == null) { |
| return false; |
| } |
| |
| // overrideable names are (usually?) qualified with a container mapping, |
| // which may also be the one mapped by a relationship |
| String qualifier = |
| (getName().indexOf('.') > 0) ? |
| getName().substring(0, getName().indexOf('.')) |
| : getName(); |
| return qualifier.equals(each.getDerivedIdentity().getMapsIdDerivedIdentityStrategy().getValue()); |
| } |
| return false; |
| } |
| |
| protected Iterable<SingleRelationshipMapping2_0> getMapsIdRelationships() { |
| return new FilteringIterable<SingleRelationshipMapping2_0>( |
| new SubIterableWrapper<AttributeMapping, SingleRelationshipMapping2_0>( |
| new CompositeIterable<AttributeMapping>( |
| getTypeMapping().getAllAttributeMappings(MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY), |
| getTypeMapping().getAllAttributeMappings(MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY)))) { |
| @Override |
| protected boolean accept(SingleRelationshipMapping2_0 o) { |
| return o.getDerivedIdentity().usesMapsIdDerivedIdentityStrategy(); |
| } |
| }; |
| } |
| |
| |
| // **************** resource -> context *********************************** |
| |
| public void update(XmlAttributeOverride xmlAttributeOverride) { |
| super.update(xmlAttributeOverride); |
| this.column.update(xmlAttributeOverride.getColumn()); |
| setMappedByRelationship(calculateMappedByRelationship()); |
| } |
| |
| |
| //****************** validation ******************** |
| |
| @Override |
| public void validate(List<IMessage> messages, IReporter reporter) { |
| super.validate(messages, reporter); |
| |
| // [JPA 2.0] if the column is specified, or if the override is not mapped by a relationship, |
| // then the column is validated. |
| // (In JPA 1.0, the column will always be validated, since the override is never mapped by a |
| // relationship) |
| if (isColumnSpecified() || ! isMappedByRelationship()) { |
| getColumn().validate(messages, reporter); |
| } |
| |
| // [JPA 2.0] if the override is mapped by a relationship, then that actually is in itself |
| // a validation error |
| // (We prevent implied overrides that are mapped by a relationship ... hopefully) |
| // (In JPA 1.0, this will never occur) |
| if (isMappedByRelationship()) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.ATTRIBUTE_OVERRIDE_MAPPED_BY_RELATIONSHIP_AND_SPECIFIED, |
| new String[] {}, |
| this, |
| getValidationTextRange())); |
| } |
| } |
| |
| public IMessage buildUnresolvedNameMessage(NamedColumn column, TextRange textRange) { |
| return getOwner().buildColumnUnresolvedNameMessage(this, column, textRange); |
| } |
| |
| public IMessage buildTableNotValidMessage(BaseColumn column, TextRange textRange) { |
| return getOwner().buildColumnTableNotValidMessage(this, column, textRange); |
| } |
| } |